One of a recently arrived set of (slightly different) meteor lights seems to have a slight power supply issue. I had it running when the power supply started making hissing noises and vapour started to squirt out of the sides and LED hole. I unplugged it and then repositioned it under the camera to see if it would fail catastrophically for us. But it didn't. I think it may need a hand.
The link these meteor lights came from is:- http://www.ebay.co.uk/itm/281782093670